Foldable walker device

Abstract

A foldable walker device includes a front frame and a rear frame. The front frame and the rear frame are pivotally connected with each other and can be relatively folded and unfolded. A seat board bridged between the front frame and the rear frame. At least one link, a front end of the link is pivotally connected with the seat board, a rear end of the link is pivotally disposed on the rear frame. When folding the walker device, the rear end of the seat board is lifted, whereby the link pivotally connected with the seat board drives the rear frame to move forward and get closer to the front frame. Under such circumstance, the walker device is folded into a minimum volume so as to minimize the room occupied by the walker device. This facilitates the storage and transfer of the walker device.

What is claimed is: 
     
       1. A foldable walker device comprising:
 a front frame; 
 a rear frame, a top end of the rear frame being pivotally connected with the front frame, whereby the front frame and the rear frame is relatively folded and unfolded; 
 a handlebar frame disposed between the front frame and the rear frame; 
 a seat board having a front end, a rear end and a pivoted section disposed between the front and rear ends of the seat board, the seat board being bridged between the front frame and the rear frame, the front end of the seat board being pivotally connected with the front frame, the rear end of the seat board being detachably connected with the rear frame; and 
 at least one link, a front end of the link being pivotally connected with the pivoted section of the seat board, a rear end of the link being pivotally disposed on the rear frame; 
 wherein the rear frame includes two rear lateral legs and a bracket bar transversely connected between the two rear lateral legs, the rear end of the seat board having an engagement section detachably engaged with the bracket bar, the rear end of the link being pivotally connected with the bracket bar. 
 
     
     
       2. The foldable walker device as claimed in  claim 1 , wherein the front frame includes two front lateral legs and a transverse bar transversely connected between the two front lateral legs, the front end of the seat board being pivotally connected with the transverse bar. 
     
     
       3. A foldable walker device comprising:
 a front frame; 
 a rear frame, a top end of the rear frame being pivotally connected with the front frame, whereby the front frame and the rear frame is relatively folded and unfolded; 
 a handlebar frame disposed between the front frame and the rear frame; 
 a seat board having a front end, a rear end and a pivoted section disposed between the front and rear ends of the seat board, the seat board being bridged between the front frame and the rear frame, the front end of the seat board being pivotally connected with the front frame, the rear end of the seat board being detachably connected with the rear frame; and 
 at least one link, a front end of the link being pivotally connected with the pivoted section of the seat board, a rear end of the link being pivotally disposed on the rear frame; 
 wherein the handlebar frame includes two upright columns and a back bar, the two upright columns being disposed between the front frame and the rear frame and vertically movable to adjust the height, the back bar being substantially U-shaped, two ends of the back bar being formed with two handles, the back bar being disposed at top ends of the two upright columns. 
 
     
     
       4. The foldable walker device as claimed in  claim 1 , further comprising two connection members disposed between the front frame and the rear frame, the top end of the front frame being fixedly connected with the connection members, the top end of the rear frame being pivotally connected with the connection members, the handlebar frame being detachably disposed on the connection members. 
     
     
       5. The foldable walker device as claimed in  claim 2 , further comprising two connection members disposed between the front frame and the rear frame, the top end of the front frame being fixedly connected with the connection members, the top end of the rear frame being pivotally connected with the connection members, the handlebar frame being detachably disposed on the connection members. 
     
     
       6. The foldable walker device as claimed in  claim 3 , further comprising two connection members disposed between the front frame and the rear frame, the top end of the front frame being fixedly connected with the connection members, the top end of the rear frame being pivotally connected with the connection members, the handlebar frame being detachably disposed on the connection members. 
     
     
       7. The foldable walker device as claimed in  claim 1 , wherein the pivoted section of the seat board is disposed on a bottom face of the seat board. 
     
     
       8. The foldable walker device as claimed in  claim 2 , wherein the pivoted section of the seat board is disposed on a bottom face of the seat board. 
     
     
       9. The foldable walker device as claimed in  claim 3 , wherein the pivoted section of the seat board is disposed on a bottom face of the seat board. 
     
     
       10. The foldable walker device as claimed in  claim 1 , wherein the seat board further includes a pivot member, the pivot member being disposed at the front end of the seat board and pivotally connected with the front frame. 
     
     
       11. The foldable walker device as claimed in  claim 2 , wherein the seat board further includes a pivot member, the pivot member being disposed at the front end of the seat board and pivotally connected with the front frame. 
     
     
       12. The foldable walker device as claimed in  claim 3 , wherein the seat board further includes a pivot member, the pivot member being disposed at the front end of the seat board and pivotally connected with the front frame. 
     
     
       13. The foldable walker device as claimed in  claim 1 , wherein the rear frame further includes a bracket bar, the engagement section of the seat board having an engagement notch formed on the bottom face of the engagement section, the bracket bar of the rear frame being detachably latched in the engagement notch. 
     
     
       14. The foldable walker device as claimed in  claim 2 , wherein the rear frame further includes a bracket bar, the engagement section of the seat board having an engagement notch formed on the bottom face of the engagement section, the bracket bar of the rear frame being detachably latched in the engagement notch. 
     
     
       15. The foldable walker device as claimed in  claim 4 , wherein the handlebar frame further includes two upright columns, multiple insertion holes being formed on the upright columns and arranged in a longitudinal direction of the upright columns, each of the connection members having a passage, a through hole and an insertion member, the passage vertically extending and communicating with the through hole, the two upright columns of the handlebar frame being respectively inserted in the passages of the connection members, the two insertion members being respectively inserted in the through holes of the connection members and one of the insertion holes of each of the upright columns. 
     
     
       16. The foldable walker device as claimed in  claim 1 , further comprising two front wheel assemblies and two rear wheels, each of the front wheel assemblies including a wheel support and at least one front wheel, the two wheel supports being respectively pivotally connected with the bottom end of the front frame, the two front wheels being pivotally connected with the wheel supports, the two rear wheels being disposed at the bottom end of the rear frame.